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1
19
20 package swingwtx.swing;
21
22 import swingwt.awt.event.*;
23
24 import java.util.*;
25
26 public class Timer {
27
28 protected Vector actionListeners = new Vector();
29 protected int delay = 100;
30 protected int initialDelay = 100;
31 protected boolean running = false;
32 protected boolean coalesce = true;
33 protected boolean repeats = true;
34
35 protected TimerThread timerThread = null;
36
37 public Timer(int delay, ActionListener l) {
38 this.delay = delay;
39 this.initialDelay = delay;
40 addActionListener(l);
41 }
42
43 public synchronized void addActionListener(ActionListener l) {
44 actionListeners.add(l);
45 }
46
47 public synchronized void removeActionListener(ActionListener l) {
48 actionListeners.remove(l);
49 }
50
51 protected synchronized void fireActionPerformed(ActionEvent e) {
52 Iterator i = actionListeners.iterator();
53 while (i.hasNext()) {
54 ((ActionListener) i.next()).actionPerformed(e);
55 }
56 }
57
58 public synchronized int getDelay() { return delay; }
59 public synchronized int getInitialDelay() { return initialDelay; }
60 public synchronized boolean isCoalesce() { return coalesce; }
61 public synchronized boolean isRepeats() { return repeats; }
62 public synchronized boolean isRunning() { return running; }
63 public synchronized void restart() { delay = initialDelay; stop(); start(); }
64 public synchronized void setCoalesce(boolean b) { coalesce = b; }
65 public synchronized void setDelay(int delay) { this.delay = delay; }
66 public synchronized void setInitialDelay(int delay) { this.initialDelay = delay; }
67 public synchronized void setRepeats(boolean b) { repeats = b; }
68 protected synchronized void setRunning(boolean b) { running = b; }
69
70 public synchronized void start() {
71 if (!isRunning()) {
72 setRunning(true);
73 timerThread = new TimerThread(this);
74 timerThread.start();
75 }
76 }
77
78 public synchronized void stop() {
79 setRunning(false);
80 timerThread = null;
81 }
82
83 }
84
85 class TimerThread extends Thread  {
86 Timer timer = null;
87 public TimerThread(Timer t) { this.timer = t; }
88 public void run() {
89 while (timer.isRunning()) {
90 try {
91 Thread.sleep(timer.getDelay());
92 }
93 catch (Exception e) {
94 }
95 SwingUtilities.invokeSync( new Runnable () {
97 public void run() {
98 timer.fireActionPerformed(new ActionEvent(timer, 0));
99 }
100 });
101 if (!timer.isRepeats()) break;
102 }
103 }
104 }
105 |
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